Sometimes, when the pi is restarted (running lineage os), the XML files are reset to default. 1. the Realdash Example Can file is set to none, and my custom OBD commands list file is set to Generic SAE compatible one.
There has been some reports on RealDash resetting its settings on startup. We did investigate this and may have found the cause. Fix will (hopefully) be in 2.2.0.
Sorry to hear this, I was hoping this was fixed. This is one of those tough problems to fix, as we have not been able to make this happen on any of our test devices.
When your OBD2 XML reverts to SAE, do all other app settings also reset?
Update*
After testing power settings and exiting RealDash before a power downing down this issue still persisted.
Updated to a fresh image of Android 11, reinstalled RealDash that seemed to fix the issue.
A few hours of testing and it appears the settings are holding during power cycling.
I will keep monitoring for any issues and report back.